One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,6)(3,4,8,7)(9,10,13,12)(11,15,16,14)(17,18)(19,22)(20,24)(21,23)(25,26,29,28)(27,31,32,30)(2,6)(4,7)(9,10)(11,15)(12,13)(14,16)(17,18,21,23)(19,22,24,20)(27,32)(30,31)(1,3)(2,7)(4,6)(5,8)(9,11)(10,14)(12,15)(13,16)(17,19,21,24)(18,22,23,20)(25,27,29,32)(26,30,28,31)(1,3)(2,4)(5,8)(6,7)(9,11)(10,15)(12,14)(13,16)(17,20)(18,19)(21,22)(23,24) involution — undirected(1,4)(2,8)(3,6)(5,7)(9,12,13,10)(11,15,16,14)(17,18)(19,22)(20,24)(21,23)(25,28,29,26)(27,31,32,30)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.